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Subject: Re: A good test position for program.

Author: William Bryant

Date: 16:11:05 12/04/99

Go up one level in this thread


On December 04, 1999 at 15:01:57, Côme wrote:

>Hello,
>In this position:
>8/prr2p1p/2R5/PP2pP2/3pRbPk/2pB3P/2P3K1/8 w - - 0 1
>Does your program play the strong Rxf4! ?
>Best Regards
>Alexandre Côme

Screamer (v1.0 Beta, build 43) of Mac G3 266mhz
finds this move in 1m 06s and the score continues to climb
for 5 minutes (duration of search).

Welcome to Screamer (Beta) 1.00  Build 43
Current Hash Table Size: 16384 K bytes
Current Pawn Hash Size: 4096 K bytes
Debug Control On
PVS Search
NULL move Search

The Current Search Time: 300 seconds

New Board Position
8/prr2p1p/2R5/PP2pP2/3pRbPk/2pB3P/2P3K1/8 w - - 0 1
Move 1 W>>
PLY     NODES     TIME   SCORE  PV
____________________________________________
  5      6943     0:00   -0.06  a6 Rxc6 bxc6 Rb2 c7
  6     13113     0:00   -0.09  a6 Rxc6 bxc6 Rc7 Bb5 Kg5
  7     53553     0:00   -0.18  Rxc7 Rxc7 b6 axb6 axb6 Rb7 Bc4 Rxb6 Bxf7
  7    145198     0:02   -0.16  Re2 Kg5 a6 Rxc6 bxc6 Rb2 c7
  8    248039     0:04   -0.02  Re2 Kg5 a6 Rxc6 bxc6 Rc7 Be4 f6
  9    743065     0:12   -0.11  Re2 Kg5 Be4 Rxc6 bxc6 Rb5 a6 Rb2 c7
  9    990171     0:16   -0.10  Ra6 Rd7 Kf3 Kg5 b6 Kh4 Bb5
  9   1516725     0:25   -0.06  Re1 h6 Be4 Rd7 b6 Bd2 Rb1 Be3 bxa7 Rxa7
 10   2022328     0:33   -0.15  Re1 Rxc6 bxc6 Rc7 Rb1 Rxc6 Rb7 Rf6 Rxa7 Kg5
 10   3438017     0:57   -0.09  Ra6 Re7 Re1 Bd2 Re2 h5 gxh5 Kxh5 b6 Be3 bxa7
Rxa7
 10   4068268     1:06   +0.01  Rxf4 exf4 Rh6+ Kg5 Rh5+ Kf6 Kf3 Rc8 Kxf4 Rh8 Ke4
						Rd7
 11   4768323     1:17   +0.07  Rxf4 exf4 Rh6+ Kg5 Rh5+ Kf6 Kf3 Ke5 f6+ Kxf6
Kxf4
						Ke6 Rxh7 Re7
 12   6267786     1:39   +0.23  Rxf4 exf4 Rh6+ Kg5 Rh5+ Kf6 Kf3 Ke5 f6+ Kxf6
Kxf4
						Ke6 a6 Rb8 Rxh7
 13   9380312     2:23   +0.36  Rxf4 exf4 Rh6+ Kg5 Rh5+ Kf6 Kf3 Ke5 f6+ Kxf6
Kxf4
						Ke6 Rxh7 Rb8 h4 Re7
     Total Search Time: 5:00
     Move: Rxf4




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